From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 095FE1A0202 for ; Mon, 11 Jan 2016 21:56:50 +1100 (AEDT) Date: Mon, 11 Jan 2016 12:56:35 +0200 From: "Michael S. Tsirkin" To: Julian Calaby Cc: Joe Perches , "linux-kernel@vger.kernel.org" , Andy Whitcroft , Peter Zijlstra , Arnd Bergmann , linux-arch@vger.kernel.org, Andrew Cooper , virtualization@lists.linux-foundation.org, Stefano Stabellini , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , David Miller , linux-ia64@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux , "Mailing List, Arm" , linux-metag@vger.kernel.org, linux-mips@linux-mips.org, x86@kernel.org, user-mode-linux-devel@lists.sourceforge.net, adi-buildroot-devel@lists.sourceforge.net, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, xen-devel@lists.xenproject.org, Ingo Molnar , Tony Lindgren , Andrey Konovalov , Russell King - ARM Linux Subject: Re: [PATCH v3 3/3] checkpatch: add virt barriers Message-ID: <20160111124509-mutt-send-email-mst@redhat.com> References: <1452454200-8844-1-git-send-email-mst@redhat.com> <1452454200-8844-4-git-send-email-mst@redhat.com> <1452466336.7773.46.camel@perches.com> <20160111123423-mutt-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, Jan 11, 2016 at 09:40:18PM +1100, Julian Calaby wrote: > Hi Michael, > > On Mon, Jan 11, 2016 at 9:35 PM, Michael S. Tsirkin wrote: > > On Sun, Jan 10, 2016 at 02:52:16PM -0800, Joe Perches wrote: > >> On Mon, 2016-01-11 at 09:13 +1100, Julian Calaby wrote: > >> > On Mon, Jan 11, 2016 at 6:31 AM, Michael S. Tsirkin wrote: > >> > > Add virt_ barriers to list of barriers to check for > >> > > presence of a comment. > >> [] > >> > > diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl > >> [] > >> > > @@ -5133,7 +5133,8 @@ sub process { > >> > > }x; > >> > > my $all_barriers = qr{ > >> > > $barriers| > >> > > - smp_(?:$smp_barrier_stems) > >> > > + smp_(?:$smp_barrier_stems)| > >> > > + virt_(?:$smp_barrier_stems) > >> > > >> > Sorry I'm late to the party here, but would it make sense to write this as: > >> > > >> > (?:smp|virt)_(?:$smp_barrier_stems) > >> > >> Yes. Perhaps the name might be better as barrier_stems. > >> > >> Also, ideally this would be longest match first or use \b > >> after the matches so that $all_barriers could work > >> successfully without a following \s*\( > >> > >> my $all_barriers = qr{ > >> (?:smp|virt)_(?:barrier_stems)| > >> $barriers) > >> }x; > >> > >> or maybe add separate $smp_barriers and $virt_barriers > >> > >> it doesn't matter much in any case > > > > OK just to clarify - are you OK with merging the patch as is? > > Refactorings can come as patches on top if required. > > I don't really care either way, I was just asking if it was possible. > If you don't see any value in that change, then don't make it. > > Thanks, > > -- > Julian Calaby > > Email: julian.calaby@gmail.com > Profile: http://www.google.com/profiles/julian.calaby/ OK, got it, thanks. I will rename smp_barrier_stems to barrier_stems since this doesn't need too much testing. I'd rather keep the regex code as is since changing it requires testing. I might play with it some more in the future but I'd like to merge it in the current form to help make sure __smp barriers are not misused. I'll post v4 now - an ack will be appreciated. -- MST